Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 5, 2016
Patent Application Number
13827894
Date Filed
March 14, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter-microphone subtraction. The difference signal includes multiple harmonics. The method also includes determining whether a harmonicity of the difference signal exceeds a harmonicity threshold. The method also includes preserving the harmonics to determine an envelope. The method further applies the envelope to a noise-suppressed signal.
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